It's been 14 years since the first Ice Age movie premiered in theaters, and the fifth one, Ice Age: Collision Course — which continues the escapades of Sid, Manny, Diego, and other prehistoric animals as they try to survive the changing environment — comes out this Friday (July 22). According to Entertainment Weekly, a brief moment in the first Ice Age is responsible for the newest addition to the series, which deals with spaceships and meteor strikes.

After Diego accidentally causes an avalanche during the OG Ice Age, he and his pals run for cover and end up in a cave. While trying to find their way out, the animals see various things frozen in solid blocks of ice, including creepy fish, a dinosaur, and a UFO.

Ice Age: Collision Course codirector Mike Thurmeier reportedly asked, “What would happen if Scrat [the acorn-obsessed squirrel] found that flying saucer?” and the idea for the fifth movie was born.

Of course, it seems like that short sequence inspired several of the films. In Ice Age: The Meltdown, we get those uber freaky ancient aquatic creatures (Cretaceous and Maelstrom) which could've been inspired by the terrifying frozen fish Sid encountered. And the dinosaur Sid found just screams Ice Age: Dawn of the Dinosaurs, when dinosaurs became active entities in the franchise.

Ice Age: Collision Course premieres in theaters July 22, 2016.